Stropping device.



J. A. HARRINGTON.

STROPPING DEVICE.

11 21110111101: FILED JUNE s, 1911.

1,024,074. Patented Apr. 23, 1912.

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UN [TED STATES PATENT OFFTQE.

JOSEPH A. HARRINGTON, or SOUTH BOSTON, MASsAcHUsETTS, ASSIGNOR orONE-HALF To MICHAEL J. LYnoN, or BOSTON, MASSACHUSETTS.

STROPPING DEVICE.

Patented Apr. 23, 1912.

Serial No. 630,996.

To all whom it may concern:

Be it known that I, JOSEPH A. HAR u G- TON, a citizen of the UnitedStates, residing at South Boston, in the county of Suffolk and State ofMassachusetts, have invented new and useful Improvements in StroppmgDevices, of which the following is a speclfication.

This invention relates to improvements n razor stropping devices of thatclass in which the stropping surface consists of a drum or drums andwhile the present embodiment of my invention is particularly adapted forstropping safety razor blades and especially double edged blades, thedevice is readily adaptable to other types of blades.

The object of my invention is to prov de a simple, convenient andeffective stropplng device by means of which a blade may be stropped byrolling the drums along the surface of a table or the like and in whichthe pressure of the blade against the drums shall be firm and positiveand under the instant control of the user through the handle by means ofwhich the stropper is used to and fro, so that the stropper is moreeffective in its action upon the blade than devices of this classheretofore.

To this end, my invention consists in the novel features of constructionand in the combination and arrangement of parts set forth in thefollowing specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 1s a plan of a stropping deviceembodying my invention. Fig. 2 is a sectional view taken on line 22 ofFig. 1, looking toward the right. Fig. 3 is a sectional View taken online 33 of Fig. 1. Fig. 4 is a sectional view taken on line 33 of Fig.1, and similar to Fig. 3 except that the positions of the blade and thehandle are reversed from that shown in Fig. 3.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 5 is a razor blade which may be of any usual or desiredtype and in the present instance I have chosen to illustrate a blade ofthe double edged type. It will be distinctly understood, however, thatwhile the device is particularly desirable for stropping this type ofblade, it is not limited in its application thereto, but may be used forstropping single edged blades equally as well. The blade is mounted onand secured in any suitable manner to a suitable blade holder 6 which ismounted to rock about an axis in suitable bearings provided in a frameconsisting of two side plates 7 7 connected to each other by shafts 8and 9 upon which are mounted stropping drums 10 and 11, respectively.

Preferably, the blade holder is mounted between the drums and with itsaxis substantially in a plane containing the axes of the drums 10 and11, so that as the blade is rocked to and fro, both sides of both edgesof the blades may be stropped without removing the blade from the holderand reversing the same. To hold the blade holder and the drums, Iprovide a lever 12 having a handle 13, said lever having two arms 14, 14pivoted upon the side plates 7, 7 upon an axis substantially parallel tothe axes of the drums 10 and 11. This lever is connected to the bladeholder 6 in any suitable manner to force said bladeagainst theperipheries of the drums 10 and 11, preferably by securing to each ofthe arms 14 a gear 15 meshing into a gear 16 secured to either end ofthe blade holder 6. By this arrangement, when the lever 12 is rocked oneway or the other, the blade holder is thereby rocked in the oppositedirection, thus, for example, assuming that the parts occupy theposition Shown in Fig. 3, if the lever be thrown into the position shownin Fig. 4, the blade and blade holder will be moved into the positionshown in Fig. 4. It will now be evident that since there is a positiveconnection between the handle and the blade, a down ward pressure uponthe handle will result in the blade being forced against both of thedrums and in this way great force can be applied so that while the drumsare being rolled along the table or other suitable support in thedirection of the arrow, Fig. 3, the downward pressure upon the handle iscapable of direct control and regulation by the user to enable the drumsto properly strop the edge of the blade. Thus by placing the handle inthe position shown in Fig. 3, one side of one edge of the blade and theopposite side of the other edge of the blade may be stropped by movingthe device in one direction, while the remaining sides of the two edgesmay be stropped by reversing the position of the handle to occupy theposition Shown in Fig. 4 and.

moving the device in the opposite direction, that is, toward the left,Fig. at.

One important advantage derived by the use of this construction is thatsince considerable force may be applied in this manner, a thin elasticblade may be caused to bear throughout both edges upon both of thedrums, even though the drums may be somewhat misalined with relation toeach ther and with relation to the blade holder.

Having thus described my invention, what I claim and desire by LettersPatent tosecure is:

1. A stropping device having, in combination, a support, a drumjournaled on said support, a blade-holder mounted to rock about an axisto carry the blade into and out of contact with said drum, and a leverextending transversely of said axis pivoted directly to said support andconnected to said bladeholder to force said blade against the peripheryof said drum.

2. A stropping device having, in combination, a support, a drumjournaled on said support, a blade-holder mounted to rock about an axisto carry the blade into and out of contact with said drum, and a leverpivoted directly to said support on an axis substantially parallel withthe axis of said drum and connected to said blade-holder to force saidblade against the periphery of said drum.

3. A stropping device having, in combi' nation, a support, a pair ofdrums journaled on said support, a blade-holder mounted to rock about anaxis between said drums to carry the blade into and out of contact withsaid drums, and a lever pivoted directly to said support on an axissubstantially parallel with the axes of said drums and connected to saidblade-holder to force said blade against the peripheries of said drums.

4. A stropping device having, in combination, a support, a drumjournaled on said support, a blade-holder mounted to rock about an axisto carry the blade into and out of contact with said drums, a leverextending transversely of said axis and pivoted directly to saidsupport, and means connecting said lever to said blade-holder wherebysaid blade may be forced by said lever against said drum.

5. A stropping device having, in combisaid lever to said blade-holderwhereby said blade may be carried into and out of contact with saiddrums.

6. A stropping device having, in combination, a frame, a pair of drumsjournaled on said frame, a blade-holder mounted on said frame to rockabout an axis to carry the blade into and out of contact with saiddrums, a lever pivoted directly to said frame on an axis substantiallyparallel with the axes of said drums, a gear carried by saidblade-holder, and a gear carried by said lever and meshing into thefirst-mentioned gear whereby said blade may be carried into and out ofcontact with said drums.

7. A stropping device having, in combination, a frame, a pair of drumsjournaled on said frame, a blade-holder mounted on said frame to rockabout an axis between said drums to carry the blade into and out ofcontact with said drums, a lever having two arms pivoted directly tosaid frame on an axis substantially parallel with the axes of saiddrums, and a pair of intermeshing gears one of which is secured to saidbladeholder and the other of which is secured to one of said arms.

8. A stropping device having, in combination, a frame, a pair of drumsjournaled on said frame, a blade-holder mounted on said frame to rockabout an axis between said drums and in substantially the same plane asthe axes of said drums, a lever pivoted directly to said frame on anaxis substantially parallel with the axes of said drums, and meansconnecting said lever to said blade-holder whereby said blade may beforced by said lever against said drums.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOSEPH A. HARRINGTON.

Witnesses:

Louis A. Jonas, SYDNEY E. TAFT.

' Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents.

Washington, I). G.

